Self tapping nut

Abstract

A self tapping nut includes a round cylindrical cap, and an upper half of the cap is formed with a deformable portion with a thin wall. An upper edge of the deformable portion is formed as a protruding lip and a lower half of the cap is formed with an un-deformable portion. One end of the un-deformable portion of the cap is installed with a drilling head by which in use of the drilling head performing a drilling on a work piece directly and simplifying a process of a work.

1 . A self tapping nut comprising: a round cylindrical cap; an upper half of the cap formed with a deformable portion with a thin wall; an upper edge of the deformable portion formed as a protruding lip and a lower half of the cap formed an un-deformable portion with a thick wall;
 a special drilling head formed in an end of the un-deformable portion of the nut; by using of the drilling head performing drilling operation on a work piece so as to provide a convenient self tapping nut which simplify a work process.   
   
   
       2 . The self tapping nut as claimed in  claim 1 , wherein a threaded rod is combined to a top of the cap.